CAN Repeater CRep S4I/FD

is a CAN FD repeater with 4 channels, which transmits and amplifies signals transparent to the classic CAN or CAN FD protocol.

Special Features

CAN Repeater CRep S4I/FD

Protocol transparent CAN repeater for CAN FD and CC
4 individually galvanically isolated CAN channels
Galvanic separation between CAN channels to power supply
Low propagation delay
ISO 11898-2:2016 compatible bus interface (TI ISO1042)
Detach of dominant locked bus segments
Rail mountable
Optional with 120 Ohm or high impedance termination resistors

Description

The rail mountable CAN repeater CRep S4I/FD transmits and amplifies signals transparent to the Classic CAN and CAN FD protocol. Each of the four CAN connections has the physical behavior of a single bus node. All CAN channels are galvanic separated to each other and to the power supply.

The maximum data rate respectively the maximum node count in CAN networks, dependingon signal propagation delays, can be increased, if CRep S4I/FD is used to improve the network structure. CRep S4I/FD offers the possibility to realize star network structures. This allows to choose a network topology, that can lead to a reduction of installation costs.

The ability to isolate permanent dominant segments from the rest of the CAN system after an error time reduces the impact of the most frequently occurring errors on intact bus segments. CRep S4I/FD is delivered with 120 Ohm termination. In case that termination is not needed we offer the device with high impedance resistors to ensure that a channel without connected and terminated cable does not disturb the rest of the connected network.

The presence of power is indicated by a LED. Each CAN channel is provided with a LED indicating that this channel has originated a CAN message.

Ordering information

Equipment / Variants

12-51-002-20

CRep S4I/FD-5/S24/RMD

12-51-102-20

CRep S4I/FD-5/S24/RMD

Technical Data

Layout and Connection

CRep S4I/FD includes four CAN segments, wired by terminal blocks with 3 clamps. The
power supply of CRep S4I/FD is separately wired by a terminal block with 2 clamps.
The following table shows the terminal assignment of the power supply:

The following table shows the terminal assignment of the power connector:

Pin	Name	Function
1	Power +	Supply voltage
2	Power –	Ground

The following table shows the pin assignment of the CAN terminal block:

Pin	Name	Function
1	CAN_H	CAN data line (dominant high)
2	CAN_L	CAN data line (dominant low)
3	CAN_GND	CAN ground

The power supply is galvanicly decoupled from the CAN system.

Limiting Values

Parameter	Minimum	Maximum	Unit
Storage temperature	-40	+85	°C
Operating temperature	-20	+60	°C
Power supply voltage	-100	+35	V
Voltage on signal lines	-70	+70	V
Maximum power dissipation (at 60 °C)	0.s.	tbd	mW

Any (also temporary) stress in excess of the limiting values may cause permanent damage on CRep S4I/FD and other connected devices. Exposure to limiting conditions for extended periods may affect the reliability and shorten the life cycle of the device.

Nominal Values

Parameter	Minimal	Typical	Maximal	Unit
Current consumption (running idle)	n.s.	50	n.s.	mA
Current consumption (250 kBits/s, 100 % busload)	n.s.	75	n.s.	mA
Supply voltage	19	24	30	V
Propagation delay between two arbitrary channels	n.s.	190	220	n.s.